The effect of thickness variation and pre-strain on the cornering fatigue life prediction of a DP600 steel wheel disc

Island-Matrix Inhomogeneous Deformation Behavior, Formation of Deformation Band, and BUT Forming of DP Steel

“…I-M-DP600 steel can be considered for the typical automotive wheel disc and is a passenger car wheel disc. A typical automotive wheel disc is one of the most severely stressed mechanism regions in the vehicle, and its durability is of vital importance to human safety (Das et al, 2020). Hence, this study aims to FE simulation results to examine the effect of the severely stressed mechanisms in the prediction of BUT condition in the I-M-DP steel sheet.…”

Self‐heating measurements under cyclic loading to identify history effects on HCF properties of high‐strength low‐alloy steel: Part I—Experimental investigations

“…This load history has an effect on fatigue properties and taking into account these effects is crucial in the design of components. [1][2][3][4][5][6] However, studying these effects using classical fatigue tests would be very time-consuming considering the time dedicated to each cyclic test to failure and the amount of variables that have an influence on fatigue properties. The Palmgren-Miner linear accumulation damage rule 7 is usually used for the case of variable amplitude loading but the accuracy is quite low.…”

“…In addition, forming processes generate deformation inside the material. This load history has an effect on fatigue properties and taking into account these effects is crucial in the design of components 1–6 . However, studying these effects using classical fatigue tests would be very time‐consuming considering the time dedicated to each cyclic test to failure and the amount of variables that have an influence on fatigue properties.…”

Self‐heating measurements under cyclic loading to identify history effects on HCF properties of high‐strength low‐alloy steel: Part II—Modeling

“…However, load history, such as forming process or accidental loading, for example, can have an effect on the HCF properties. [1][2][3][4][5][6] Studying these load history effects on HCF properties considering regular fatigue tests would be very time consuming; therefore, it was proposed to investigate those effects by means of self-heating measurements under cyclic loading, given in the accompanying paper. 7 In order to predict S-N-P curves (i.e., amplitude stress, number of cycles to failure, and probability of failure) from self-heating measurements, a probabilistic two-scale model was developed, 8,9 assuming that fatigue initiation is caused by localized microplasticity that induces dissipated energy.…”

“…High cycle fatigue (HCF) properties of a steel grade are usually characterized from the as‐delivery state of the material. However, load history, such as forming process or accidental loading, for example, can have an effect on the HCF properties 1–6 . Studying these load history effects on HCF properties considering regular fatigue tests would be very time consuming; therefore, it was proposed to investigate those effects by means of self‐heating measurements under cyclic loading, given in the accompanying paper 7 …”